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Simultaneous anion and cation binding by a simple polymer-bound ureidopyridyl ligand. (2006)
Journal Article
Russell, J., Parker, A., Radosavljevie-Evans, I., Howard, J., & Steed, J. (2006). Simultaneous anion and cation binding by a simple polymer-bound ureidopyridyl ligand. Chemical Communications, 2006(3), 269-271. https://doi.org/10.1039/b513820e

A polymer-supported ligand capable of simultaneous anion and cation binding is reported along with X-ray crystallographic data showing potential binding modes.

Anion-binding mode in a sulfanylphenyl urea complex : solid state symmetry breaking and solution chelation. (2006)
Journal Article
Russell, J., Parker, A., Radosavljevic-Evans, I., Howard, J., & Steed, J. (2006). Anion-binding mode in a sulfanylphenyl urea complex : solid state symmetry breaking and solution chelation. CrystEngComm, 8(2), 119-122. https://doi.org/10.1039/b516962c

An anion-bridged, hydrogen bonded coordination polymer apparently adapts its symmetry to form a Z′ = 1 or 2 structure according to the hydrogen bonding demands of the anion, and in solution there is evidence for a discrete anion-binding coordination... Read More about Anion-binding mode in a sulfanylphenyl urea complex : solid state symmetry breaking and solution chelation..

Anion binding by Ag(I) complexes of urea-substituted pyridyl ligands (2005)
Journal Article
Turner, D., Smith, B., Spencer, E., Goeta, A., Evans, I., Tocher, D., …Steed, J. (2005). Anion binding by Ag(I) complexes of urea-substituted pyridyl ligands. New Journal of Chemistry, 29(1), 90-98

A series of Ag(I) complexes of ureidopyridyl ligands 1 and 2 have been prepared from oxo-anion salts. In all cases the new materials contain the AgL2+ cation interacting with oxo-anions via the urea moiety. The complexes containing the para ligand 2:... Read More about Anion binding by Ag(I) complexes of urea-substituted pyridyl ligands.

Structural, spectroscopic and computational studies of the HgL2Cl2 complex (L=3,5-dimethyl-1-thiocarboxamide pyrazole) and the crystal structure of L (2005)
Journal Article
Kovacs, A., Nemcsok, D., Pokol, G., Szecsenyi, K., Leovac, V., Jacimovic, Z., …Giester, G. (2005). Structural, spectroscopic and computational studies of the HgL2Cl2 complex (L=3,5-dimethyl-1-thiocarboxamide pyrazole) and the crystal structure of L. New Journal of Chemistry, 29(6), 833-840

In the present paper we report the synthesis as well as the structural and vibrational characterisation of the HgL2Cl2 complex ( L = 3,5-dimethyl-1-thiocarboxamide). The crystal and molecular structures of both L and the HgL2Cl2 complex were determin... Read More about Structural, spectroscopic and computational studies of the HgL2Cl2 complex (L=3,5-dimethyl-1-thiocarboxamide pyrazole) and the crystal structure of L.

Modular nanometer-scale structuring of gel fibres by sequential self-organization (2005)
Journal Article
Applegarth, L., Clark, N., Richardson, A., Parker, A., Radosavljevic-Evans, I., Goeta, A., …Steed, J. (2005). Modular nanometer-scale structuring of gel fibres by sequential self-organization. Chemical Communications, 5423-5425

Ag(I) and Cu(II) complexes of a series of simple bis( urea) ligands form soft metallogels. X-ray crystallographic results suggests that the gels' structure is based on hydrogen bonding to counter anions and thus suggests a route to tunable gel rheolo... Read More about Modular nanometer-scale structuring of gel fibres by sequential self-organization.

The crystal structure of alpha-La2Mo2O9 and the structural origin of the oxide ion migration pathway (2005)
Journal Article
Evans, I., Howard, J., & Evans, J. (2005). The crystal structure of alpha-La2Mo2O9 and the structural origin of the oxide ion migration pathway. Chemistry of Materials, 17(16), 4074-4077. https://doi.org/10.1021/cm050049%2B

We describe for the first time the full 3D atomic structure of room-temperature alpha-La2Mo2O9. The material, despite its simple chemical formula, has a remarkable 312 crystallographically unique atoms and is thus one of the most complex oxide struct... Read More about The crystal structure of alpha-La2Mo2O9 and the structural origin of the oxide ion migration pathway.

Synthesis and crystal structure of BiCd2AsO6 (2005)
Journal Article
Evans, I., Howard, J., & Sleight, A. (2005). Synthesis and crystal structure of BiCd2AsO6. Solid State Sciences, 7(3), 299-302

A new compound BiCd2AsO6 has been prepared and its crystal structure determined by single crystal X-ray diffraction. The unit cell parameters are: a = 8.618(l) angstrom, b = 11.949(2) angstrom and c = 5.4407(7) angstrom and the space group Cmc2(1)cen... Read More about Synthesis and crystal structure of BiCd2AsO6.

Transition metal complexes with pyrazole based ligands, part 18: new binuclear Cu(I), Cu(II) and Co(II) complexes with 3,5-dimethyl-l-thiocarboxamide pyrazole: synthesis, structural and magnetic studies (2004)
Journal Article
Evans, I., Howard, J., Howard, L., Evans, J., Jacimovic, Z., Jevtovic, V., & Leovac, V. (2004). Transition metal complexes with pyrazole based ligands, part 18: new binuclear Cu(I), Cu(II) and Co(II) complexes with 3,5-dimethyl-l-thiocarboxamide pyrazole: synthesis, structural and magnetic studies. Inorganica Chimica Acta, 357(15), 4528-4536

Three new binuclear metal complexes of the formulas [(Cu2L2Cl4)-L-II] (1), [(Cu2L2Br2)-L-I] (2) and [(Co2L2Cl4)-L-II] (3) (L = 3,5-dimethyl-1-thiocarboxamide pyrazole) have been synthesized and characterized by chemical analysis, FT-IR spectroscopy,... Read More about Transition metal complexes with pyrazole based ligands, part 18: new binuclear Cu(I), Cu(II) and Co(II) complexes with 3,5-dimethyl-l-thiocarboxamide pyrazole: synthesis, structural and magnetic studies.

Mo2P4O15 - the most complex oxide structure solved by single crystal methods? (2004)
Journal Article
Lister, S., Evans, I., Howard, J., Coelho, A., & Evans, J. (2004). Mo2P4O15 - the most complex oxide structure solved by single crystal methods?. Chemical Communications, 2540-2541

We report the crystal structure and phase transitions of Mo2P4O15 which, despite a simple chemical formula, has 441 crystallographically unique atoms in its asymmetric unit and thus has the most complex structure of any extended oxide reported to dat... Read More about Mo2P4O15 - the most complex oxide structure solved by single crystal methods?.

A study of the thermal and light induced spin transition in FeL2 (BF4)(2) and FeL2 (ClO4)(2) L=2,6-di(3-methylpyrazol-1-yl)pyrazine (2004)
Journal Article
Money, V., Elhaik, J., Evans, I., Halcrow, M., & Howard, J. (2004). A study of the thermal and light induced spin transition in FeL2 (BF4)(2) and FeL2 (ClO4)(2) L=2,6-di(3-methylpyrazol-1-yl)pyrazine. Dalton Transactions, 43(1), 65-69. https://doi.org/10.1039/b311262b

The spin crossover compounds [FeL2](BF4)(2), L = 2,6-di(3-methylpyrazol-1-yl) pyrazine and [FeL2](ClO4)(2) have very unusual two stage spin transitions which are initially steep and then become more gradual. A detailed variable temperature single cry... Read More about A study of the thermal and light induced spin transition in FeL2 (BF4)(2) and FeL2 (ClO4)(2) L=2,6-di(3-methylpyrazol-1-yl)pyrazine.

Transition metal complexes with pyrazole-based ligands. XIX. Diaquabis(3,5-dimethyl-1H-pyrazole-1-carboxamidine-kappa N-2,N `)metal(II) dinitrate, with metal = Co and Ni (2004)
Journal Article
Jacimovic, Z., Leovac, V., Szecsenyi, K., Howard, J., & Evans, I. (2004). Transition metal complexes with pyrazole-based ligands. XIX. Diaquabis(3,5-dimethyl-1H-pyrazole-1-carboxamidine-kappa N-2,N `)metal(II) dinitrate, with metal = Co and Ni. Acta crystallographica. Section C, Crystal structure communications, 60(10), M467-M470. https://doi.org/10.1107/s0108270104017433

Isogentisin (1,3-dihydroxy-7-methoxyxanthone) (2004)
Journal Article
Evans, I., Howard, J., Savikin-Fodulovic, K., & Menkovic, N. (2004). Isogentisin (1,3-dihydroxy-7-methoxyxanthone). Acta crystallographica. Section B, Structural science, 60, O1557-O1559

The crystal structure of isogentisin, C14H10O5, a natural product isolated from Gentiana lutea, has been determined. The phenolic ring system is essentially planar and the displacement of the methoxy substituent from the mean molecular plane is very... Read More about Isogentisin (1,3-dihydroxy-7-methoxyxanthone).

Synthesis, characterization and crystal structure of a novel Ni(II) complex, Ni(L-H)(2) (L=3,5-dimethyl-1-thiocarboxamidopyrazole) (2004)
Journal Article
Evans, I., Howard, J., Szecsenyi, K., Leovac, V., & Jacimovic, Z. (2004). Synthesis, characterization and crystal structure of a novel Ni(II) complex, Ni(L-H)(2) (L=3,5-dimethyl-1-thiocarboxamidopyrazole). Journal of Coordination Chemistry, 57(6), 469-476

A new complex, Ni(L-H)(2), L = 3,5-dimethyl-1-thiocarboxamidopyrazole, has been synthesized and characterized by IR spectroscopy, magnetic and electrical measurements. Its crystal structure was solved from powder X-ray diffraction data. The compound... Read More about Synthesis, characterization and crystal structure of a novel Ni(II) complex, Ni(L-H)(2) (L=3,5-dimethyl-1-thiocarboxamidopyrazole).

An X-ray powder diffraction study of the spin-crossover transition and structure of bis (2,6-dipyrazol-1-ylpyrazine)iron(II) perchlorate (2004)
Journal Article
Money, V., Evans, I., Elhaik, J., Halcrow, M., & Howard, J. (2004). An X-ray powder diffraction study of the spin-crossover transition and structure of bis (2,6-dipyrazol-1-ylpyrazine)iron(II) perchlorate. Acta crystallographica. Section B, Structural science, 60, 41-45

The crystal structure of the iron(II) spin-crossover compound [Fe(C10H8N6)(2)](ClO4)(2) in the high-spin state has been solved from powder X-ray diffraction data using the DASH program and refined using Rietveld refinement. The thermal spin transitio... Read More about An X-ray powder diffraction study of the spin-crossover transition and structure of bis (2,6-dipyrazol-1-ylpyrazine)iron(II) perchlorate.

alpha-Bi2Sn2O7 - a 176 atom crystal structure from powder diffraction data (2003)
Journal Article
Evans, I., Howard, J., & Evans, J. (2003). alpha-Bi2Sn2O7 - a 176 atom crystal structure from powder diffraction data. Journal of materials chemistry, 13(9), 2098-2103. https://doi.org/10.1039/b305211g

Pyrochlore-type bismuth tin oxide, Bi2Sn2O7, is a technologically important material used in applications such as catalysis and gas sensing. Its room temperature structure has been solved by a method of simulated annealing of combined X-ray and neutr... Read More about alpha-Bi2Sn2O7 - a 176 atom crystal structure from powder diffraction data.

Variable temperature in situ X-ray diffraction study of mechanically activated synthesis of calcium titanate, CaTiO3 (2003)
Journal Article
Evans, I., Howard, J., Sreckovic, T., & Ristic, M. (2003). Variable temperature in situ X-ray diffraction study of mechanically activated synthesis of calcium titanate, CaTiO3. Materials Research Bulletin, 38(7), 1203-1213

The effect of mechanical activation on formation of calcium titanate (CaTiO3) from calcined mixtures of CaCO3 and TiO2 was studied by monitoring the course of this solid-state reaction by variable temperature in situ X-ray diffraction (XRD) experimen... Read More about Variable temperature in situ X-ray diffraction study of mechanically activated synthesis of calcium titanate, CaTiO3.

Synthesis, crystal structure, and oxide ion conductivity in Bi4.6Ca1.1VO10.5 (2002)
Journal Article
Evans, I., Tao, S., Irvine, J., & Howard, J. (2002). Synthesis, crystal structure, and oxide ion conductivity in Bi4.6Ca1.1VO10.5. Chemistry of Materials, 14(9), 3700-3704

A novel bismuth calcium vanadate, Bi4.6Ca1.1VO10.5, has been synthesized. Its crystal p structure has been determined by synchrotron X-ray diffraction. The compound crystallizes in orthorhombic space group Pnnm, with cell parameters a = 11.930(2) (A)... Read More about Synthesis, crystal structure, and oxide ion conductivity in Bi4.6Ca1.1VO10.5.

Variable temperature structural study of bismuth lead vanadate, BiPb₂VO₆ (2002)
Journal Article
Evans, I., Evans, J., & Howard, J. (2002). Variable temperature structural study of bismuth lead vanadate, BiPb₂VO₆. Journal of materials chemistry, 12(9), 2648-2652. https://doi.org/10.1039/b202648a

At room temperature, monoclinic BiPb2VO6 is a polar, noncentrosymmetric, second harmonic generation active material and its crystal structure is among the more complex to be solved ab initio from powder diffraction data. In its stability range, BiPb2... Read More about Variable temperature structural study of bismuth lead vanadate, BiPb₂VO₆.